///inventory_create();
var i;
for (i = 1; i < 9; i += 1)
   {
   inventory[i]=-1;
   }

var a;
for (a = 1; a < 5; a += 1)
   {
   cargo[a]=-1;
   }
   
var c;
for (c = 1; c < 5; c += 1)
   {
   cargo_quantity[c]=-1;
   }
